Receptacle adapter



FIG. 1 is a front elevational view of a receptacle adapter;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is a bottom view thereof.

The surface or portion of the article not shown in the drawing ordescribed in the specification forms no part of the claimed design.

The ornamental design for a receptacle adapter, as shown and described.